<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.9.1"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>Eigen: Meta.h Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
  $(document).ready(function() { init_search(); });
/* @license-end */
</script>
<script type="text/x-mathjax-config">
  MathJax.Hub.Config({
    extensions: ["tex2jax.js", "TeX/AMSmath.js", "TeX/AMSsymbols.js"],
    jax: ["input/TeX","output/HTML-CSS"],
});
</script>
<script type="text/javascript" async="async" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="eigendoxy.css" rel="stylesheet" type="text/css">
<!--  -->
<script type="text/javascript" src="eigen_navtree_hacks.js"></script>
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 56px;">
  <td id="projectlogo"><img alt="Logo" src="Eigen_Silly_Professor_64x64.png"/></td>
  <td id="projectalign" style="padding-left: 0.5em;">
   <div id="projectname"><a href="http://eigen.tuxfamily.org">Eigen</a>
   &#160;<span id="projectnumber">3.4.90 (git rev 67eeba6e720c5745abc77ae6c92ce0a44aa7b7ae)</span>
   </div>
  </td>
   <td>        <div id="MSearchBox" class="MSearchBoxInactive">
        <span class="left">
          <img id="MSearchSelect" src="search/mag_sel.svg"
               onmouseover="return searchBox.OnSearchSelectShow()"
               onmouseout="return searchBox.OnSearchSelectHide()"
               alt=""/>
          <input type="text" id="MSearchField" value="Search" accesskey="S"
               onfocus="searchBox.OnSearchFieldFocus(true)" 
               onblur="searchBox.OnSearchFieldFocus(false)" 
               onkeyup="searchBox.OnSearchFieldChange(event)"/>
          </span><span class="right">
            <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.svg" alt=""/></a>
          </span>
        </div>
</td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.9.1 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
var searchBox = new SearchBox("searchBox", "search",false,'Search','.html');
/* @license-end */
</script>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
  <div id="nav-tree">
    <div id="nav-tree-contents">
      <div id="nav-sync" class="sync"></div>
    </div>
  </div>
  <div id="splitbar" style="-moz-user-select:none;" 
       class="ui-resizable-handle">
  </div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
$(document).ready(function(){initNavTree('Meta_8h_source.html',''); initResizable(); });
/* @license-end */
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
     onmouseover="return searchBox.OnSearchSelectShow()"
     onmouseout="return searchBox.OnSearchSelectHide()"
     onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>

<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0" 
        name="MSearchResults" id="MSearchResults">
</iframe>
</div>

<div class="header">
  <div class="headertitle">
<div class="title">Meta.h</div>  </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">// This file is part of Eigen, a lightweight C++ template library</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">// for linear algebra.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">// Copyright (C) 2008-2015 Gael Guennebaud &lt;gael.guennebaud@inria.fr&gt;</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">// Copyright (C) 2006-2008 Benoit Jacob &lt;jacob.benoit.1@gmail.com&gt;</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">// This Source Code Form is subject to the terms of the Mozilla</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">// Public License v. 2.0. If a copy of the MPL was not distributed</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160; </div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor">#ifndef EIGEN_META_H</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#define EIGEN_META_H</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160; </div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &quot;../InternalHeaderCheck.h&quot;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160; </div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#if defined(EIGEN_GPU_COMPILE_PHASE)</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160; </div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor"> #include &lt;cfloat&gt;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160; </div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor"> #if defined(EIGEN_CUDA_ARCH)</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">  #include &lt;math_constants.h&gt;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor"> #endif</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160; </div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor"> #if defined(EIGEN_HIP_DEVICE_COMPILE)</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">  #include &quot;Eigen/src/Core/arch/HIP/hcc/math_constants.h&quot;</span></div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">  #endif</span></div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160; </div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160; </div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment">// Recent versions of ICC require &lt;cstdint&gt; for pointer types below.</span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#define EIGEN_ICC_NEEDS_CSTDINT (EIGEN_COMP_ICC&gt;=1600)</span></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160; </div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="comment">// Define portable (u)int{32,64} types</span></div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#include &lt;cstdint&gt;</span></div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160; </div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceEigen.html">Eigen</a> {</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="keyword">namespace </span>numext {</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="keyword">typedef</span> std::uint8_t  uint8_t;</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="keyword">typedef</span> std::int8_t   int8_t;</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="keyword">typedef</span> std::uint16_t uint16_t;</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="keyword">typedef</span> std::int16_t  int16_t;</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="keyword">typedef</span> std::uint32_t uint32_t;</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="keyword">typedef</span> std::int32_t  int32_t;</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="keyword">typedef</span> std::uint64_t uint64_t;</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="keyword">typedef</span> std::int64_t  int64_t;</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;}</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;}</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160; </div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceEigen.html">Eigen</a> {</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160; </div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="keyword">typedef</span> EIGEN_DEFAULT_DENSE_INDEX_TYPE DenseIndex;</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160; </div>
<div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">   59</a></span>&#160;<span class="keyword">typedef</span> EIGEN_DEFAULT_DENSE_INDEX_TYPE <a class="code" href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Index</a>;</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160; </div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="keyword">namespace </span>internal {</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160; </div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;<span class="comment">// Only recent versions of ICC complain about using ptrdiff_t to hold pointers,</span></div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;<span class="comment">// and older versions do not provide *intptr_t types.</span></div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="preprocessor">#if EIGEN_ICC_NEEDS_CSTDINT</span></div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="keyword">typedef</span> std::intptr_t  IntPtr;</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;<span class="keyword">typedef</span> std::uintptr_t UIntPtr;</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="keyword">typedef</span> std::ptrdiff_t IntPtr;</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="keyword">typedef</span> std::size_t UIntPtr;</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="preprocessor">#undef EIGEN_ICC_NEEDS_CSTDINT</span></div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160; </div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;<span class="keyword">struct </span>true_type {  <span class="keyword">enum</span> { value = 1 }; };</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="keyword">struct </span>false_type { <span class="keyword">enum</span> { value = 0 }; };</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160; </div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;<span class="keyword">template</span>&lt;<span class="keywordtype">bool</span> Condition&gt;</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;<span class="keyword">struct </span>bool_constant;</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160; </div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;<span class="keyword">template</span>&lt;&gt;</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;<span class="keyword">struct </span>bool_constant&lt;true&gt; : true_type {};</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160; </div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;<span class="keyword">template</span>&lt;&gt;</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;<span class="keyword">struct </span>bool_constant&lt;false&gt; : false_type {};</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160; </div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;<span class="comment">// Third-party libraries rely on these.</span></div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;<span class="keyword">using</span> std::conditional;</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;<span class="keyword">using</span> std::remove_reference;</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;<span class="keyword">using</span> std::remove_pointer;</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;<span class="keyword">using</span> std::remove_const;</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160; </div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>remove_all { <span class="keyword">typedef</span> T type; };</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>remove_all&lt;const T&gt;   { <span class="keyword">typedef</span> <span class="keyword">typename</span> remove_all&lt;T&gt;::type type; };</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>remove_all&lt;T const&amp;&gt;  { <span class="keyword">typedef</span> <span class="keyword">typename</span> remove_all&lt;T&gt;::type type; };</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>remove_all&lt;T&amp;&gt;        { <span class="keyword">typedef</span> <span class="keyword">typename</span> remove_all&lt;T&gt;::type type; };</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>remove_all&lt;T const*&gt;  { <span class="keyword">typedef</span> <span class="keyword">typename</span> remove_all&lt;T&gt;::type type; };</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>remove_all&lt;T*&gt;        { <span class="keyword">typedef</span> <span class="keyword">typename</span> remove_all&lt;T&gt;::type type; };</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160; </div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;<span class="keyword">using</span> remove_all_t = <span class="keyword">typename</span> remove_all&lt;T&gt;::type;</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160; </div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>is_arithmetic      { <span class="keyword">enum</span> { value = <span class="keyword">false</span> }; };</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;<span class="keyword">template</span>&lt;&gt; <span class="keyword">struct </span>is_arithmetic&lt;float&gt;         { <span class="keyword">enum</span> { value = <span class="keyword">true</span> }; };</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;<span class="keyword">template</span>&lt;&gt; <span class="keyword">struct </span>is_arithmetic&lt;double&gt;        { <span class="keyword">enum</span> { value = <span class="keyword">true</span> }; };</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;<span class="keyword">template</span>&lt;&gt; <span class="keyword">struct </span>is_arithmetic&lt;long double&gt;   { <span class="keyword">enum</span> { value = <span class="keyword">true</span> }; };</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;<span class="keyword">template</span>&lt;&gt; <span class="keyword">struct </span>is_arithmetic&lt;bool&gt;          { <span class="keyword">enum</span> { value = <span class="keyword">true</span> }; };</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;<span class="keyword">template</span>&lt;&gt; <span class="keyword">struct </span>is_arithmetic&lt;char&gt;          { <span class="keyword">enum</span> { value = <span class="keyword">true</span> }; };</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;<span class="keyword">template</span>&lt;&gt; <span class="keyword">struct </span>is_arithmetic&lt;signed char&gt;   { <span class="keyword">enum</span> { value = <span class="keyword">true</span> }; };</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;<span class="keyword">template</span>&lt;&gt; <span class="keyword">struct </span>is_arithmetic&lt;unsigned char&gt; { <span class="keyword">enum</span> { value = <span class="keyword">true</span> }; };</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;<span class="keyword">template</span>&lt;&gt; <span class="keyword">struct </span>is_arithmetic&lt;signed short&gt;  { <span class="keyword">enum</span> { value = <span class="keyword">true</span> }; };</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;<span class="keyword">template</span>&lt;&gt; <span class="keyword">struct </span>is_arithmetic&lt;unsigned short&gt;{ <span class="keyword">enum</span> { value = <span class="keyword">true</span> }; };</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;<span class="keyword">template</span>&lt;&gt; <span class="keyword">struct </span>is_arithmetic&lt;signed int&gt;    { <span class="keyword">enum</span> { value = <span class="keyword">true</span> }; };</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;<span class="keyword">template</span>&lt;&gt; <span class="keyword">struct </span>is_arithmetic&lt;unsigned int&gt;  { <span class="keyword">enum</span> { value = <span class="keyword">true</span> }; };</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;<span class="keyword">template</span>&lt;&gt; <span class="keyword">struct </span>is_arithmetic&lt;signed long&gt;   { <span class="keyword">enum</span> { value = <span class="keyword">true</span> }; };</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;<span class="keyword">template</span>&lt;&gt; <span class="keyword">struct </span>is_arithmetic&lt;unsigned long&gt; { <span class="keyword">enum</span> { value = <span class="keyword">true</span> }; };</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160; </div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> U&gt; <span class="keyword">struct </span>is_same { <span class="keyword">enum</span> { value = 0 }; };</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>is_same&lt;T,T&gt; { <span class="keyword">enum</span> { value = 1 }; };</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160; </div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;<span class="keyword">template</span>&lt; <span class="keyword">class</span> T &gt;</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;<span class="keyword">struct </span>is_void : is_same&lt;void, std::remove_const_t&lt;T&gt;&gt; {};</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160; </div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;<span class="keyword">template</span>&lt;&gt; <span class="keyword">struct </span>is_arithmetic&lt;signed long long&gt;   { <span class="keyword">enum</span> { value = <span class="keyword">true</span> }; };</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;<span class="keyword">template</span>&lt;&gt; <span class="keyword">struct </span>is_arithmetic&lt;unsigned long long&gt; { <span class="keyword">enum</span> { value = <span class="keyword">true</span> }; };</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;<span class="keyword">using</span> std::is_integral;</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160; </div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;<span class="keyword">using</span> std::make_unsigned;</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160; </div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>is_const { <span class="keyword">enum</span> { value = 0 }; };</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>is_const&lt;T const&gt; { <span class="keyword">enum</span> { value = 1 }; };</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160; </div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>add_const_on_value_type            { <span class="keyword">typedef</span> <span class="keyword">const</span> T type;  };</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>add_const_on_value_type&lt;T&amp;&gt;        { <span class="keyword">typedef</span> T <span class="keyword">const</span>&amp; type; };</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>add_const_on_value_type&lt;T*&gt;        { <span class="keyword">typedef</span> T <span class="keyword">const</span>* type; };</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>add_const_on_value_type&lt;T* <span class="keyword">const</span>&gt;  { <span class="keyword">typedef</span> T <span class="keyword">const</span>* <span class="keyword">const</span> type; };</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>add_const_on_value_type&lt;T const* <span class="keyword">const</span>&gt;  { <span class="keyword">typedef</span> T <span class="keyword">const</span>* <span class="keyword">const</span> type; };</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160; </div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;<span class="keyword">using</span> add_const_on_value_type_t = <span class="keyword">typename</span> add_const_on_value_type&lt;T&gt;::type;</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160; </div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;<span class="keyword">using</span> std::is_convertible;</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160; </div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;<span class="keyword">class </span>noncopyable</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;{</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;  EIGEN_DEVICE_FUNC noncopyable(<span class="keyword">const</span> noncopyable&amp;);</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;  EIGEN_DEVICE_FUNC <span class="keyword">const</span> noncopyable&amp; operator=(<span class="keyword">const</span> noncopyable&amp;);</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;<span class="keyword">protected</span>:</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;  EIGEN_DEVICE_FUNC noncopyable() {}</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;  EIGEN_DEVICE_FUNC ~noncopyable() {}</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;};</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160; </div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> EnableIf = <span class="keywordtype">void</span>&gt; <span class="keyword">struct </span>array_size {</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;  <span class="keyword">enum</span> { value = <a class="code" href="namespaceEigen.html#ad81fa7195215a0ce30017dfac309f0b2">Dynamic</a> };</div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;};</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160; </div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>array_size&lt;T, std::enable_if_t&lt;((T::SizeAtCompileTime&amp;0)==0)&gt;&gt; {</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;  <span class="keyword">enum</span> { value = T::SizeAtCompileTime };</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;};</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160; </div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T, <span class="keywordtype">int</span> N&gt; <span class="keyword">struct </span>array_size&lt;const T (&amp;)[N]&gt; {</div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;  <span class="keyword">enum</span> { value = N };</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;};</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T, <span class="keywordtype">int</span> N&gt; <span class="keyword">struct </span>array_size&lt;T (&amp;)[N]&gt; {</div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;  <span class="keyword">enum</span> { value = N };</div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;};</div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160; </div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T, std::<span class="keywordtype">size_t</span> N&gt; <span class="keyword">struct </span>array_size&lt;const std::array&lt;T,N&gt; &gt; {</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;  <span class="keyword">enum</span> { value = N };</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;};</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T, std::<span class="keywordtype">size_t</span> N&gt; <span class="keyword">struct </span>array_size&lt;std::array&lt;T,N&gt; &gt; {</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;  <span class="keyword">enum</span> { value = N };</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;};</div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160; </div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160; </div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;<span class="preprocessor">#if EIGEN_COMP_CXXVER &lt; 20  || EIGEN_GNUC_AT_MOST(9,4)</span></div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;EIGEN_CONSTEXPR <span class="keyword">auto</span> index_list_size(<span class="keyword">const</span> T&amp; x) {</div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;  <span class="keyword">using</span> R = std::common_type_t&lt;std::ptrdiff_t, std::make_signed_t&lt;decltype(x.size())&gt;&gt;;</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;  <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span>R<span class="keyword">&gt;</span>(x.size());</div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;}</div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160; </div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T, std::ptrdiff_t N&gt;</div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;EIGEN_CONSTEXPR std::ptrdiff_t index_list_size(<span class="keyword">const</span> T (&amp;)[N]) { <span class="keywordflow">return</span> N; }</div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;EIGEN_CONSTEXPR <span class="keyword">auto</span> index_list_size(T&amp;&amp; x) {</div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;  <span class="keyword">using</span> std::ssize;</div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;  <span class="keywordflow">return</span> ssize(std::forward&lt;T&gt;(x));</div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;}</div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;<span class="preprocessor">#endif </span><span class="comment">// EIGEN_COMP_CXXVER</span></div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160; </div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;<span class="preprocessor">#if EIGEN_HAS_STD_INVOKE_RESULT</span></div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>result_of;</div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160; </div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> F, <span class="keyword">typename</span>... ArgTypes&gt;</div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;<span class="keyword">struct </span>result_of&lt;F(ArgTypes...)&gt; {</div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;  <span class="keyword">typedef</span> <span class="keyword">typename</span> std::invoke_result&lt;F, ArgTypes...&gt;::type type1;</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;  <span class="keyword">typedef</span> remove_all_t&lt;type1&gt; type;</div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;};</div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160; </div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> F, <span class="keyword">typename</span>... ArgTypes&gt;</div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;<span class="keyword">struct </span>invoke_result {</div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;  <span class="keyword">typedef</span> <span class="keyword">typename</span> std::invoke_result&lt;F, ArgTypes...&gt;::type type1;</div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;  <span class="keyword">typedef</span> remove_all_t&lt;type1&gt; type;</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;};</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>result_of {</div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;  <span class="keyword">typedef</span> <span class="keyword">typename</span> std::result_of&lt;T&gt;::type type1;</div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;  <span class="keyword">typedef</span> remove_all_t&lt;type1&gt; type;</div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;};</div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160; </div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> F, <span class="keyword">typename</span>... ArgTypes&gt;</div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;<span class="keyword">struct </span>invoke_result {</div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;    <span class="keyword">typedef</span> <span class="keyword">typename</span> result_of&lt;F(ArgTypes...)&gt;::type type1;</div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;    <span class="keyword">typedef</span> remove_all_t&lt;type1&gt; type;</div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;};</div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160; </div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;<span class="comment">// Reduces a sequence of bools to true if all are true, false otherwise.</span></div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;<span class="keyword">template</span>&lt;<span class="keywordtype">bool</span>... values&gt;</div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;<span class="keyword">using</span> reduce_all = std::is_same&lt;std::integer_sequence&lt;bool, values..., <span class="keyword">true</span>&gt;,</div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;    std::integer_sequence&lt;bool, <span class="keyword">true</span>, values...&gt; &gt;;</div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160; </div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;<span class="comment">// Reduces a sequence of bools to true if any are true, false if all false.</span></div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;<span class="keyword">template</span>&lt;<span class="keywordtype">bool</span>... values&gt;</div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;<span class="keyword">using</span> reduce_any = std::integral_constant&lt;bool,</div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;    !std::is_same&lt;std::integer_sequence&lt;bool, values..., <span class="keyword">false</span>&gt;, std::integer_sequence&lt;bool, <span class="keyword">false</span>, values...&gt; &gt;::value&gt;;</div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160; </div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;<span class="keyword">struct </span>meta_yes { <span class="keywordtype">char</span> a[1]; };</div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;<span class="keyword">struct </span>meta_no  { <span class="keywordtype">char</span> a[2]; };</div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160; </div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;<span class="comment">// Check whether T::ReturnType does exist</span></div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;<span class="keyword">struct </span>has_ReturnType</div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;{</div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> C&gt; <span class="keyword">static</span> meta_yes testFunctor(C <span class="keyword">const</span> *, <span class="keyword">typename</span> C::ReturnType <span class="keyword">const</span> * = 0);</div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> C&gt; <span class="keyword">static</span> meta_no  testFunctor(...);</div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160; </div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;  <span class="keyword">enum</span> { value = <span class="keyword">sizeof</span>(testFunctor&lt;T&gt;(<span class="keyword">static_cast&lt;</span>T*<span class="keyword">&gt;</span>(0))) == <span class="keyword">sizeof</span>(meta_yes) };</div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;};</div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160; </div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">const</span> T* return_ptr();</div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160; </div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> IndexType=Index&gt;</div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;<span class="keyword">struct </span>has_nullary_operator</div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;{</div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> C&gt; <span class="keyword">static</span> meta_yes testFunctor(C <span class="keyword">const</span> *,std::enable_if_t&lt;(<span class="keyword">sizeof</span>(return_ptr&lt;C&gt;()-&gt;<span class="keyword">operator</span>()())&gt;0)&gt; * = 0);</div>
<div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;  <span class="keyword">static</span> meta_no testFunctor(...);</div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160; </div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;  <span class="keyword">enum</span> { value = <span class="keyword">sizeof</span>(testFunctor(<span class="keyword">static_cast&lt;</span>T*<span class="keyword">&gt;</span>(0))) == <span class="keyword">sizeof</span>(meta_yes) };</div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;};</div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160; </div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> IndexType=Index&gt;</div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;<span class="keyword">struct </span>has_unary_operator</div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;{</div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> C&gt; <span class="keyword">static</span> meta_yes testFunctor(C <span class="keyword">const</span> *,std::enable_if_t&lt;(<span class="keyword">sizeof</span>(return_ptr&lt;C&gt;()-&gt;<span class="keyword">operator</span>()(IndexType(0)))&gt;0)&gt; * = 0);</div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;  <span class="keyword">static</span> meta_no testFunctor(...);</div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160; </div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;  <span class="keyword">enum</span> { value = <span class="keyword">sizeof</span>(testFunctor(<span class="keyword">static_cast&lt;</span>T*<span class="keyword">&gt;</span>(0))) == <span class="keyword">sizeof</span>(meta_yes) };</div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;};</div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160; </div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> IndexType=Index&gt;</div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;<span class="keyword">struct </span>has_binary_operator</div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;{</div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">typename</span> C&gt; <span class="keyword">static</span> meta_yes testFunctor(C <span class="keyword">const</span> *,std::enable_if_t&lt;(<span class="keyword">sizeof</span>(return_ptr&lt;C&gt;()-&gt;<span class="keyword">operator</span>()(IndexType(0),IndexType(0)))&gt;0)&gt; * = 0);</div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;  <span class="keyword">static</span> meta_no testFunctor(...);</div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160; </div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;  <span class="keyword">enum</span> { value = <span class="keyword">sizeof</span>(testFunctor(<span class="keyword">static_cast&lt;</span>T*<span class="keyword">&gt;</span>(0))) == <span class="keyword">sizeof</span>(meta_yes) };</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;};</div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160; </div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;<span class="keyword">template</span>&lt;<span class="keywordtype">int</span> Y,</div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;         <span class="keywordtype">int</span> InfX = 0,</div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;         <span class="keywordtype">int</span> SupX = ((Y==1) ? 1 : Y/2),</div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;         <span class="keywordtype">bool</span> Done = ((SupX - InfX) &lt;= 1 || ((SupX * SupX &lt;= Y) &amp;&amp; ((SupX + 1) * (SupX + 1) &gt; Y)))&gt;</div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;<span class="keyword">class</span> meta_sqrt</div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;{</div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;    <span class="keyword">enum</span> {</div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;      MidX = (InfX+SupX)/2,</div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;      TakeInf = MidX*MidX &gt; Y ? 1 : 0,</div>
<div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;      NewInf = <span class="keywordtype">int</span>(TakeInf) ? InfX : int(MidX),</div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;      NewSup = int(TakeInf) ? int(MidX) : SupX</div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;    };</div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;    <span class="keyword">enum</span> { ret = meta_sqrt&lt;Y,NewInf,NewSup&gt;::ret };</div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;};</div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160; </div>
<div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;<span class="keyword">template</span>&lt;<span class="keywordtype">int</span> Y, <span class="keywordtype">int</span> InfX, <span class="keywordtype">int</span> SupX&gt;</div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;<span class="keyword">class </span>meta_sqrt&lt;Y, InfX, SupX, true&gt; { <span class="keyword">public</span>:  <span class="keyword">enum</span> { ret = (SupX*SupX &lt;= Y) ? SupX : InfX }; };</div>
<div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160; </div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160; </div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;<span class="keyword">template</span>&lt;<span class="keywordtype">int</span> A, <span class="keywordtype">int</span> B, <span class="keywordtype">int</span> K=1, <span class="keywordtype">bool</span> Done = ((A*K)%B)==0, <span class="keywordtype">bool</span> Big=(A&gt;=B)&gt;</div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;<span class="keyword">struct</span> meta_least_common_multiple</div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;{</div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;  <span class="keyword">enum</span> { ret = meta_least_common_multiple&lt;A,B,K+1&gt;::ret };</div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;};</div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;<span class="keyword">template</span>&lt;<span class="keywordtype">int</span> A, <span class="keywordtype">int</span> B, <span class="keywordtype">int</span> K, <span class="keywordtype">bool</span> Done&gt;</div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;<span class="keyword">struct </span>meta_least_common_multiple&lt;A,B,K,Done,false&gt;</div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;{</div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;  <span class="keyword">enum</span> { ret = meta_least_common_multiple&lt;B,A,K&gt;::ret };</div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;};</div>
<div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;<span class="keyword">template</span>&lt;<span class="keywordtype">int</span> A, <span class="keywordtype">int</span> B, <span class="keywordtype">int</span> K&gt;</div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;<span class="keyword">struct </span>meta_least_common_multiple&lt;A,B,K,true,true&gt;</div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;{</div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;  <span class="keyword">enum</span> { ret = A*K };</div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;};</div>
<div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160; </div>
<div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160; </div>
<div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T, <span class="keyword">typename</span> U&gt; <span class="keyword">struct </span>scalar_product_traits</div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;{</div>
<div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;  <span class="keyword">enum</span> { Defined = 0 };</div>
<div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;};</div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160; </div>
<div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;<span class="comment">// FIXME quick workaround around current limitation of result_of</span></div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;<span class="comment">// template&lt;typename Scalar, typename ArgType0, typename ArgType1&gt;</span></div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;<span class="comment">// struct result_of&lt;scalar_product_op&lt;Scalar&gt;(ArgType0,ArgType1)&gt; {</span></div>
<div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;<span class="comment">// typedef typename scalar_product_traits&lt;remove_all_t&lt;ArgType0&gt;, remove_all_t&lt;ArgType1&gt;&gt;::ReturnType type;</span></div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;<span class="comment">// };</span></div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160; </div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;<span class="keyword">template</span>&lt;<span class="keywordtype">unsigned</span> Len, <span class="keywordtype">unsigned</span> Align&gt;</div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;<span class="keyword">struct </span>aligned_storage {</div>
<div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;  <span class="keyword">struct </span>type {</div>
<div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;    EIGEN_ALIGN_TO_BOUNDARY(Align) <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> data[Len];</div>
<div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;  };</div>
<div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;};</div>
<div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160; </div>
<div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;} <span class="comment">// end namespace internal</span></div>
<div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160; </div>
<div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; <span class="keyword">struct </span>NumTraits;</div>
<div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160; </div>
<div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;<span class="keyword">namespace </span>numext {</div>
<div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160; </div>
<div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;<span class="preprocessor">#if defined(EIGEN_GPU_COMPILE_PHASE)</span></div>
<div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; EIGEN_DEVICE_FUNC   <span class="keywordtype">void</span> swap(T &amp;a, T &amp;b) { T tmp = b; b = a; a = tmp; }</div>
<div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt; EIGEN_STRONG_INLINE <span class="keywordtype">void</span> swap(T &amp;a, T &amp;b) { std::swap(a,b); }</div>
<div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160; </div>
<div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;<span class="keyword">using</span> std::numeric_limits;</div>
<div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160; </div>
<div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;<span class="comment">// Integer division with rounding up.</span></div>
<div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;<span class="comment">// T is assumed to be an integer type with a&gt;=0, and b&gt;0</span></div>
<div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;EIGEN_DEVICE_FUNC</div>
<div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;T div_ceil(<span class="keyword">const</span> T &amp;a, <span class="keyword">const</span> T &amp;b)</div>
<div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;{</div>
<div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;  <span class="keywordflow">return</span> (a+b-1) / b;</div>
<div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;}</div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160; </div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;<span class="comment">// The aim of the following functions is to bypass -Wfloat-equal warnings</span></div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;<span class="comment">// when we really want a strict equality comparison on floating points.</span></div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> X, <span class="keyword">typename</span> Y&gt; EIGEN_STRONG_INLINE EIGEN_DEVICE_FUNC</div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;<span class="keywordtype">bool</span> equal_strict(<span class="keyword">const</span> X&amp; x,<span class="keyword">const</span> Y&amp; y) { <span class="keywordflow">return</span> x == y; }</div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160; </div>
<div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;<span class="preprocessor">#if !defined(EIGEN_GPU_COMPILE_PHASE) || (!defined(EIGEN_CUDA_ARCH) &amp;&amp; defined(EIGEN_CONSTEXPR_ARE_DEVICE_FUNC))</span></div>
<div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;<span class="keyword">template</span>&lt;&gt; EIGEN_STRONG_INLINE EIGEN_DEVICE_FUNC</div>
<div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;<span class="keywordtype">bool</span> equal_strict(<span class="keyword">const</span> <span class="keywordtype">float</span>&amp; x,<span class="keyword">const</span> <span class="keywordtype">float</span>&amp; y) { <span class="keywordflow">return</span> std::equal_to&lt;float&gt;()(x,y); }</div>
<div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160; </div>
<div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;<span class="keyword">template</span>&lt;&gt; EIGEN_STRONG_INLINE EIGEN_DEVICE_FUNC</div>
<div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;<span class="keywordtype">bool</span> equal_strict(<span class="keyword">const</span> <span class="keywordtype">double</span>&amp; x,<span class="keyword">const</span> <span class="keywordtype">double</span>&amp; y) { <span class="keywordflow">return</span> std::equal_to&lt;double&gt;()(x,y); }</div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160; </div>
<div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> X&gt; EIGEN_STRONG_INLINE EIGEN_DEVICE_FUNC</div>
<div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;<span class="keywordtype">bool</span> is_exactly_zero(<span class="keyword">const</span> X&amp; x) { <span class="keywordflow">return</span> equal_strict(x, <span class="keyword">typename</span> NumTraits&lt;X&gt;::Literal{0}); }</div>
<div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160; </div>
<div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> X&gt; EIGEN_STRONG_INLINE EIGEN_DEVICE_FUNC</div>
<div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;<span class="keywordtype">bool</span> is_exactly_one(<span class="keyword">const</span> X&amp; x) { <span class="keywordflow">return</span> equal_strict(x, <span class="keyword">typename</span> NumTraits&lt;X&gt;::Literal{1}); }</div>
<div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160; </div>
<div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> X, <span class="keyword">typename</span> Y&gt; EIGEN_STRONG_INLINE EIGEN_DEVICE_FUNC</div>
<div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;<span class="keywordtype">bool</span> not_equal_strict(<span class="keyword">const</span> X&amp; x,<span class="keyword">const</span> Y&amp; y) { <span class="keywordflow">return</span> x != y; }</div>
<div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160; </div>
<div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160;<span class="preprocessor">#if !defined(EIGEN_GPU_COMPILE_PHASE) || (!defined(EIGEN_CUDA_ARCH) &amp;&amp; defined(EIGEN_CONSTEXPR_ARE_DEVICE_FUNC))</span></div>
<div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;<span class="keyword">template</span>&lt;&gt; EIGEN_STRONG_INLINE EIGEN_DEVICE_FUNC</div>
<div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;<span class="keywordtype">bool</span> not_equal_strict(<span class="keyword">const</span> <span class="keywordtype">float</span>&amp; x,<span class="keyword">const</span> <span class="keywordtype">float</span>&amp; y) { <span class="keywordflow">return</span> std::not_equal_to&lt;float&gt;()(x,y); }</div>
<div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160; </div>
<div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160;<span class="keyword">template</span>&lt;&gt; EIGEN_STRONG_INLINE EIGEN_DEVICE_FUNC</div>
<div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160;<span class="keywordtype">bool</span> not_equal_strict(<span class="keyword">const</span> <span class="keywordtype">double</span>&amp; x,<span class="keyword">const</span> <span class="keywordtype">double</span>&amp; y) { <span class="keywordflow">return</span> std::not_equal_to&lt;double&gt;()(x,y); }</div>
<div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160; </div>
<div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;} <span class="comment">// end namespace numext</span></div>
<div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160; </div>
<div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;<span class="keyword">namespace </span>internal {</div>
<div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> A&gt;</div>
<div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160;constexpr <span class="keywordtype">bool</span> is_int_or_enum_v = std::is_enum&lt;A&gt;::value || std::is_integral&lt;A&gt;::value;</div>
<div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160; </div>
<div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> A, <span class="keyword">typename</span> B&gt;</div>
<div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;<span class="keyword">inline</span> constexpr <span class="keywordtype">int</span> plain_enum_min(A a, B b) {</div>
<div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;  static_assert(is_int_or_enum_v&lt;A&gt;, <span class="stringliteral">&quot;Argument a must be an integer or enum&quot;</span>);</div>
<div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;  static_assert(is_int_or_enum_v&lt;B&gt;, <span class="stringliteral">&quot;Argument b must be an integer or enum&quot;</span>);</div>
<div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;  <span class="keywordflow">return</span> ((<span class="keywordtype">int</span>) a &lt;= (<span class="keywordtype">int</span>) b) ? (int) a : (<span class="keywordtype">int</span>) b;</div>
<div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;}</div>
<div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160; </div>
<div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> A, <span class="keyword">typename</span> B&gt;</div>
<div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;<span class="keyword">inline</span> constexpr <span class="keywordtype">int</span> plain_enum_max(A a, B b) {</div>
<div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160;  static_assert(is_int_or_enum_v&lt;A&gt;, <span class="stringliteral">&quot;Argument a must be an integer or enum&quot;</span>);</div>
<div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;  static_assert(is_int_or_enum_v&lt;B&gt;, <span class="stringliteral">&quot;Argument b must be an integer or enum&quot;</span>);</div>
<div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;  <span class="keywordflow">return</span> ((<span class="keywordtype">int</span>) a &gt;= (<span class="keywordtype">int</span>) b) ? (int) a : (<span class="keywordtype">int</span>) b;</div>
<div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;}</div>
<div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160; </div>
<div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> A, <span class="keyword">typename</span> B&gt;</div>
<div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;<span class="keyword">inline</span> constexpr <span class="keywordtype">int</span> min_size_prefer_dynamic(A a, B b) {</div>
<div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;  static_assert(is_int_or_enum_v&lt;A&gt;, <span class="stringliteral">&quot;Argument a must be an integer or enum&quot;</span>);</div>
<div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;  static_assert(is_int_or_enum_v&lt;B&gt;, <span class="stringliteral">&quot;Argument b must be an integer or enum&quot;</span>);</div>
<div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;  <span class="keywordflow">if</span> ((<span class="keywordtype">int</span>) a == 0 || (<span class="keywordtype">int</span>) b == 0) <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;  <span class="keywordflow">if</span> ((<span class="keywordtype">int</span>) a == 1 || (<span class="keywordtype">int</span>) b == 1) <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160;  <span class="keywordflow">if</span> ((<span class="keywordtype">int</span>) a == <a class="code" href="namespaceEigen.html#ad81fa7195215a0ce30017dfac309f0b2">Dynamic</a> || (<span class="keywordtype">int</span>) b == <a class="code" href="namespaceEigen.html#ad81fa7195215a0ce30017dfac309f0b2">Dynamic</a>) <span class="keywordflow">return</span> <a class="code" href="namespaceEigen.html#ad81fa7195215a0ce30017dfac309f0b2">Dynamic</a>;</div>
<div class="line"><a name="l00478"></a><span class="lineno">  478</span>&#160;  <span class="keywordflow">return</span> plain_enum_min(a, b);</div>
<div class="line"><a name="l00479"></a><span class="lineno">  479</span>&#160;}</div>
<div class="line"><a name="l00480"></a><span class="lineno">  480</span>&#160; </div>
<div class="line"><a name="l00487"></a><span class="lineno">  487</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> A, <span class="keyword">typename</span> B&gt;</div>
<div class="line"><a name="l00488"></a><span class="lineno">  488</span>&#160;<span class="keyword">inline</span> constexpr <span class="keywordtype">int</span> min_size_prefer_fixed(A a, B b) {</div>
<div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160;  static_assert(is_int_or_enum_v&lt;A&gt;, <span class="stringliteral">&quot;Argument a must be an integer or enum&quot;</span>);</div>
<div class="line"><a name="l00490"></a><span class="lineno">  490</span>&#160;  static_assert(is_int_or_enum_v&lt;B&gt;, <span class="stringliteral">&quot;Argument b must be an integer or enum&quot;</span>);</div>
<div class="line"><a name="l00491"></a><span class="lineno">  491</span>&#160;  <span class="keywordflow">if</span> ((<span class="keywordtype">int</span>) a == 0 || (<span class="keywordtype">int</span>) b == 0) <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00492"></a><span class="lineno">  492</span>&#160;  <span class="keywordflow">if</span> ((<span class="keywordtype">int</span>) a == 1 || (<span class="keywordtype">int</span>) b == 1) <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00493"></a><span class="lineno">  493</span>&#160;  <span class="keywordflow">if</span> ((<span class="keywordtype">int</span>) a == <a class="code" href="namespaceEigen.html#ad81fa7195215a0ce30017dfac309f0b2">Dynamic</a> &amp;&amp; (<span class="keywordtype">int</span>) b == <a class="code" href="namespaceEigen.html#ad81fa7195215a0ce30017dfac309f0b2">Dynamic</a>) <span class="keywordflow">return</span> <a class="code" href="namespaceEigen.html#ad81fa7195215a0ce30017dfac309f0b2">Dynamic</a>;</div>
<div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160;  <span class="keywordflow">if</span> ((<span class="keywordtype">int</span>) a == <a class="code" href="namespaceEigen.html#ad81fa7195215a0ce30017dfac309f0b2">Dynamic</a>) <span class="keywordflow">return</span> (<span class="keywordtype">int</span>) b;</div>
<div class="line"><a name="l00495"></a><span class="lineno">  495</span>&#160;  <span class="keywordflow">if</span> ((<span class="keywordtype">int</span>) b == <a class="code" href="namespaceEigen.html#ad81fa7195215a0ce30017dfac309f0b2">Dynamic</a>) <span class="keywordflow">return</span> (<span class="keywordtype">int</span>) a;</div>
<div class="line"><a name="l00496"></a><span class="lineno">  496</span>&#160;  <span class="keywordflow">return</span> plain_enum_min(a, b);</div>
<div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;}</div>
<div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160; </div>
<div class="line"><a name="l00500"></a><span class="lineno">  500</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> A, <span class="keyword">typename</span> B&gt;</div>
<div class="line"><a name="l00501"></a><span class="lineno">  501</span>&#160;<span class="keyword">inline</span> constexpr <span class="keywordtype">int</span> max_size_prefer_dynamic(A a, B b) {</div>
<div class="line"><a name="l00502"></a><span class="lineno">  502</span>&#160;  static_assert(is_int_or_enum_v&lt;A&gt;, <span class="stringliteral">&quot;Argument a must be an integer or enum&quot;</span>);</div>
<div class="line"><a name="l00503"></a><span class="lineno">  503</span>&#160;  static_assert(is_int_or_enum_v&lt;B&gt;, <span class="stringliteral">&quot;Argument b must be an integer or enum&quot;</span>);</div>
<div class="line"><a name="l00504"></a><span class="lineno">  504</span>&#160;  <span class="keywordflow">if</span> ((<span class="keywordtype">int</span>) a == <a class="code" href="namespaceEigen.html#ad81fa7195215a0ce30017dfac309f0b2">Dynamic</a> || (<span class="keywordtype">int</span>) b == <a class="code" href="namespaceEigen.html#ad81fa7195215a0ce30017dfac309f0b2">Dynamic</a>) <span class="keywordflow">return</span> <a class="code" href="namespaceEigen.html#ad81fa7195215a0ce30017dfac309f0b2">Dynamic</a>;</div>
<div class="line"><a name="l00505"></a><span class="lineno">  505</span>&#160;  <span class="keywordflow">return</span> plain_enum_max(a, b);</div>
<div class="line"><a name="l00506"></a><span class="lineno">  506</span>&#160;}</div>
<div class="line"><a name="l00507"></a><span class="lineno">  507</span>&#160; </div>
<div class="line"><a name="l00509"></a><span class="lineno">  509</span>&#160;<span class="keyword">inline</span> constexpr <span class="keywordtype">bool</span> logical_xor(<span class="keywordtype">bool</span> a, <span class="keywordtype">bool</span> b) {</div>
<div class="line"><a name="l00510"></a><span class="lineno">  510</span>&#160;  <span class="keywordflow">return</span> a != b;</div>
<div class="line"><a name="l00511"></a><span class="lineno">  511</span>&#160;}</div>
<div class="line"><a name="l00512"></a><span class="lineno">  512</span>&#160; </div>
<div class="line"><a name="l00514"></a><span class="lineno">  514</span>&#160;<span class="keyword">inline</span> constexpr <span class="keywordtype">bool</span> check_implication(<span class="keywordtype">bool</span> a, <span class="keywordtype">bool</span> b) {</div>
<div class="line"><a name="l00515"></a><span class="lineno">  515</span>&#160;  <span class="keywordflow">return</span> !a || b;</div>
<div class="line"><a name="l00516"></a><span class="lineno">  516</span>&#160;}</div>
<div class="line"><a name="l00517"></a><span class="lineno">  517</span>&#160; </div>
<div class="line"><a name="l00519"></a><span class="lineno">  519</span>&#160;<span class="preprocessor">#if EIGEN_COMP_CXXVER &gt;= 20</span></div>
<div class="line"><a name="l00520"></a><span class="lineno">  520</span>&#160;<span class="keyword">using</span> std::is_constant_evaluated;</div>
<div class="line"><a name="l00521"></a><span class="lineno">  521</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00522"></a><span class="lineno">  522</span>&#160;constexpr <span class="keywordtype">bool</span> is_constant_evaluated() { <span class="keywordflow">return</span> <span class="keyword">false</span>; }</div>
<div class="line"><a name="l00523"></a><span class="lineno">  523</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160; </div>
<div class="line"><a name="l00525"></a><span class="lineno">  525</span>&#160;} <span class="comment">// end namespace internal</span></div>
<div class="line"><a name="l00526"></a><span class="lineno">  526</span>&#160; </div>
<div class="line"><a name="l00527"></a><span class="lineno">  527</span>&#160;} <span class="comment">// end namespace Eigen</span></div>
<div class="line"><a name="l00528"></a><span class="lineno">  528</span>&#160; </div>
<div class="line"><a name="l00529"></a><span class="lineno">  529</span>&#160;<span class="preprocessor">#endif </span><span class="comment">// EIGEN_META_H</span></div>
<div class="ttc" id="anamespaceEigen_html"><div class="ttname"><a href="namespaceEigen.html">Eigen</a></div><div class="ttdoc">Namespace containing all symbols from the Eigen library.</div><div class="ttdef"><b>Definition:</b> Core:139</div></div>
<div class="ttc" id="anamespaceEigen_html_a62e77e0933482dafde8fe197d9a2cfde"><div class="ttname"><a href="namespaceEigen.html#a62e77e0933482dafde8fe197d9a2cfde">Eigen::Index</a></div><div class="ttdeci">EIGEN_DEFAULT_DENSE_INDEX_TYPE Index</div><div class="ttdoc">The Index type as used for the API.</div><div class="ttdef"><b>Definition:</b> Meta.h:59</div></div>
<div class="ttc" id="anamespaceEigen_html_ad81fa7195215a0ce30017dfac309f0b2"><div class="ttname"><a href="namespaceEigen.html#ad81fa7195215a0ce30017dfac309f0b2">Eigen::Dynamic</a></div><div class="ttdeci">const int Dynamic</div><div class="ttdef"><b>Definition:</b> Constants.h:24</div></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
  <ul>
    <li class="navelem"><a class="el" href="dir_a62d91f57b5fefafb116d3f5c1ce792a.html">Eigen</a></li><li class="navelem"><a class="el" href="dir_f84311377820247c2dbcf5d6a63ab308.html">src</a></li><li class="navelem"><a class="el" href="dir_c5b8aa1b6d8d74c5127fb52cc05e6083.html">Core</a></li><li class="navelem"><a class="el" href="dir_9b1089a6cdbf3a2a4b9dab645db5a543.html">util</a></li><li class="navelem"><b>Meta.h</b></li>
    <li class="footer">Generated on Thu Apr 21 2022 13:07:52 for Eigen by
    <a href="http://www.doxygen.org/index.html">
    <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.9.1 </li>
  </ul>
</div>
</body>
</html>
